(1) All rules as to the use of building sites and execution of building works, made under the Tripura Municipal Act (herein after referred to as the former rules) and in force immediately before the coming into force of these rules, shall, with effect from the date of coming into force of these rules, cease to have effect.
(2) Notwithstanding such ceaser, every building plan sanctioned under the former rules and remaining valid on date immediately before the date of coming into force of these rules, shall continue to remain valid till the expiry of the period of validity thereof.
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PART —XII Special Provisions on Huts, facilities for physically handicapped persons, Green buildings and Sustainability provisions like Roof top solar energy installation, solar 1 04.
105.
assisted water-heating system. rainwater harvesting, wastewater recycling and insurance of functional building;
Huts/mud Walls :- In areas specially set apart in development plans and detailed Town Planning Schemes, or in any area approved by the ULB, construction of huts may be allowed subject to the following conditions:-
(a) Application for permission to construct or re- construct or alter or add to a huts/Mud Walls shall be in the form set out vide these rules ( form set out in the Appendix —“A” ) .
(b) A Hut/Mud Wall have 1.5 meters wide open space on all sides.
(c) A Hut/Mud Wall shall have its floor area at least 20 cm. above the surrounding grounds.
(d) A Hut/Mud wall shall have a clear internal area of 4 square meters and minimum width in any direction shall not be less then 2 mtrs.
(e) No Hut/Mud wall shall be of more than one storey. The minimum height at the caves shall not be less than 2 meters.
(f) Every Hut/Mud wall shall invariably be provided with ventilating openings of not less than 10 per cent of the floor area.
(g) Every Hut/Mud wall shall be provided with adequate sanitary and drainage arrangements. Latrines shall be of water flush sanitary system.
(h) Application Fee for seeking permission to construct a Hut/Mud Wall, the rate will be as per the fixed by the concerned ULB.
Green buildings and Sustainability provisions:-
(1) All buildings on various plot sizes above 500 sq.m. shall comply with the green norms and conform to the requirements mandatory for sanction.
(2) Provisions and Applicability The green building provisions on various plot sizes are indicated in the table below:
Provisions and applicability for various plot sizes ( Residential and Non- Residential) Plot Applicable plot Provisions for sanction as Provisions for sanction as Category area(sq.m) sub rule (3) sub rule (3) (Residential) (Non-Residential) I Up to 500 Nil Nil II 500 to 1000 1(a),1(c), 2(b), 3(c), 4(a) 1(a),1(c), 2(a), 2(b), 3(0), 4 a 1000 to 3000 1(a), 1(c), 1(d),2(a),2(b), 1(a),1(c), 1(d),2(a),2(b), 3(b),3(0),4(a) 3(b),3(0),4(a) III Above3000 1 (a), 1(b), 1 (c), 1 (d), 2(a), 1 (a), 1 (b), 1 (c), 1 (d),2(a), 2(b),3(a),3(b),3(C),4(a),4(b) 2(b),3(a),3(b),3(0),4(a), 4(b) Page 76
(3) Provisions for Sanction
1. Water Conservation and Management a) Rain Water Harvesting b) Low Water Consumption Plumbing Fixtures c) Waste Water Recycle and Reuse d) Reduction of Hardscape
2. Solar Energy Utilization a) Installation of Solar Photovoltaic Panels b) Installation of Solar assisted Water Heating Systems
3. Energy Efficiency (Concept ofpassive solar design of buildings) a) Low Energy Consumption Lighting Fixtures (Electrical Appliances- BEE Star and Energy Efficient Appliances) b) Energy Efficiency in HVAC Systems.
c) Lighting of Common areas by Solar Energy/ LED devices.
4. Waste Management a) Segregation of Waste b) Organic Waste Management In case owners of properties desire to procure green building rating from one or more rating bodies, they may suitably incorporate any other provisions, if required.
106. Minimum provisions for DifferntIy-abled, Elderly and Children required in various types of buildings.
(1) Applicability These regulations shall be applicable to all buildings and facilities used by the public such as educational, institutional, assembly, commercial, business, mercantile buildings and group housing constructed on plots having an area of more than 2000 sq.m. It shall not apply to private residential buildings.
(2) Guidelines andprovisions Provisions in thefollowing guidelines shall apply .'
1. “Guidelines and Space Standardsfor Barrier Free Built Environmentfor Disabled and Elderly Persons”, (1998), Central Public Works Department, G01.
2. “Manual on Barrier Free Environment”, (2002), 0/0 the Chief Commissionerfor Persons with Disabilities, Ministry of Urban Development, G01.
3. “National Building Code”, (2005), Bureau ofIndian Standards.
4. “National Policyfor Persons with Disabilities (2006), Ministry ofSocial Justice and Empowerment, G01.
5. “Harmonized Guidelines and Space Standards for Barrier Free Built Environment for Persons with Disabilities and Elderly Persons”, (Draft 2014), Ministry ofUrban Development, G01.
(3) Types ofbuildings to adopt barrierfree guidelines
(a) Buildings to be designedfor Ambulant Disabled People Higher Secondary School, Conference Hall, Dance Halls, Youth Centers, Youth Clubs, Sport Centers, Sport Pavilions, Boar Club Houses, Ice Rinks, Bowling Centers, Swimming Pools, Police Stations, Law Courts, Courts Houses, Sport Stadiums, Theaters, Concrete Halls, Cinemas, Auditoria, Small Oflicers (the maximum plinth area 1400 sq.mt.) Snack Bars, Cafes and banqueting rooms 0'0r capacity above 50 dinners).
Note:
Page 77 a. In sport stadiums provisions shall be madefor non-ambulant spectators(small wheel-chair).
b. @ 1:1000 up to 10,000 spectators and @ 1 :2000for spectators above 10,000.
c. In Theaters, Concert Halls, Cinemas and Auditoria provisions shall be madefor non-ambulant spectators (Small Wheel Chairs) @ 1/250 up to 1000 spectators and 1/5000for spectators above 1000.
(b) Buildings to be designedfor Non-Ambulant Disabled People.
Schools for differently abled and all other buildings and along with Botanical gardens, Religious Buildings, Elderly People Clubs, Village Halls, Day Centers, Junior Training Centers, Post Oflices, Banks, Dispensaries, Railway Stations, Shops, Super Markets, and Departmental Stores.
Note: Large wheel chair criteria shall be applicable on groundfloors of the following building, post oflices, banks, dispensaries, railway station, shops, supermarkets, and departmental stores.
(c) Buildings to be designedfor Non-Ambulant People (Using small wheel chairs) Public lavatories in Tourist Sports, Clubs Motels, Professional and Scientific Institution, Museum, Art Galleries, Public Libraries, Laborites, Universities, College for further Education, Teachers Training Colleges, Technical Colleges, Exhibition Halls, Dentist Surgeries, Administrative Department of the Hospitals, Service Stations, Car Parking, Buildings, Airports Terminals, Bus Terminals, Factories, Employing differently abled for sedentary works, Large Offices, (with plinth area abode 1400 sq.mt.), Tax Oflices, Passport Ofi‘ices, Pension Oflices, and Labour Ofiices, Cafes, Banqueting Rooms and Snack Bars (For capacity above 100 dinners).
(d) Site development Level of the roads, access paths andparking areas shall be described in the plan along with specification ofthe materials.
(i) Access Path / Walk Way Access path from plot entry and surface parking to building entrance shall be minimum of 1800 mm wide having even surface without any steps. Slope, ifany, shall not have gradient greater than 5%. Selection offloor material shall be made suitably to attract or to guide visually impaired persons (limited to colouredfloor material whose colour and brightness is conspicuously different from that of the surrounding floor material or the material that emits difi’erent sound to guide visually impaired persons; hereinafter referred “o” as “guidingfloor material”. Finishes shall have a non-slip surface with a texture traversable by a wheel chair. Kerbs wherever provided should blend to a common level.
(ii) Parking Forparking ofvehicles ofdifferently-abledpeople, thefollowing provisions shall apply:
a) Surface parking for two car spaces shall be provided near entrance for the physically diflerently-abled persons with maximum travel distance of 30.0 m. from building entrance.
b) The width ofparking bay shall be minimum 3.6 meter.
c) The information stating that the space is reservedfor wheel chair users shall be conspicuously displayed.
Page 78 d) Guiding floor materials shall be provided or a device, which guides visually impaired persons with audible signals, or other devices, which serves the same purpose, shall be provided.
(4) Building requirements The specified facilities in buildings for differently abled persons shall be as follows:
((1) Approach to plinth level Every building should have at least one entrance accessible to the diflerently abled and shall be indicated by proper signage. This entrance shall be approached through a ramp together with the stepped entry.
i. Ramped Approach: Ramp shall be finished with non-slip material to enter the building. Minimum width of ramp shall be I800mm with maximum gradient 1;12.
Length of ramp shall not exceed 9.0 meter having 800mm high hand rail on both sides extending 300mm beyond top and bottom of the ramp. Minimum gap from the adjacent wall to the hand rail shall be 50mm.
ii. Stepped Approach: For stepped approach size of tread shall not be less than 300mm and maximum riser shall be I50mm. Provision of 800mm high hand rail on both sides of the stepped approach similar to the ramped approach.
iii. Exit/Entrance Door: Minimum & clear opening of the entrance door shall be 900mm and it shall not be provided with a step that obstructs the passage ofa wheel chair user. Threshold shall not be raised more than 12mm.
iv. Entrance Landing: Entrance landing shall be provided adjacent to ramp with the minimum dimension I800mm x 2000mm. The entrance landing that adjoins the top end of a slope shall be provided with floor materials to attract the attention of visually impaired person’s flimited to coloured floor material whose colour and brightness is conspicuously different fiom that of the surroundingfloor material or the material that emits different sound to guide visually impaired persons. Finishes shall have a non-slip surface with a texture traversable by a wheel chair, Kerbs whereverprovided should blend to a common level.
(b) Corridor connecting the entrance/exitfor the differently abled The Corridor connecting the entrance / exitfor difl‘erently abled leading directly outdoors to a place where information concerning the overall use of the specified building can beprovided to visually impairedpe3rsons either by a person or by signs, shall be provided asfollows:
i) Guidingfloor materials ’ shall beprovided or device that emits sound to guide visually impairedpersons.
ii) The minimum width shall be I500mm.
iii) In case there is a difference oflevel, slope ways shall beprovided with a slope of 1:12.
iv) Handrails shall be providedfor ramps/slope ways.
(5) Stair-ways One ofthe stir-ways , near the entrance / existfor the dijferently abled shall have thefollowingprovisions:
1) The minimum width shall be 1350 mm.
Page 79 ii) Height ofthe riser shall not be more than I50 mm and width ofthe tread 300 mm.
The steps shall not have abrupt (square) nosing.
iii) Maximum number ofrisers on aflight shall be limited to 12.
iv) Handrails shall be provided on both sides and shall extend 300 mm on the top and bottom ofeachflight ofsteps.
(6) Lifts Wherever lift is required as per bye-laws, provision of at least one lift shall be made for the wheel chair user with the following cage dimensions of lift recommendedfor passenger lift of 13 person ’s capacity ofNBC, BIS. Desirable Lift size are:
Clear internal width 1100 mm.
Clear internal depth 2000 mm.
Entrance door width 900 mm.
a) A hand rail not less than 600mm long at 1000mm abovefloor level shall befixed adjacent to the controlpanel.
b) The lift lobby shall be ofan inside measurement of1800 mm x 2000 mm or more.
c) The time ofan automatically closing door should be minimum 5 seconds and the closing speed should not exceed 0.25 m/sec.
d) The interior ofthe cage shall beprovided with a device that audibly indicates the floor, the cage has reached indicates that the door ofthe cage ofentrance/exit is either open or closed.
e) Graphic/Braille signage, as per the Harmonized Guidelines, shall beprovided in the lift lobby.
(7) Toilets One special W.C. in a set of toilets shall be provided for the use of dijferently abled with essential provision of washbasin near the entrance for the diflerently abled.
a) The minimum size shall be 1500 mm x I 750 mm.
b) Minimum clear opening ofthe door shall be 900mm and the door shall swing out.
c) Suitable arrangement ofvertical/horizontal handrails with 50mm clearancefrom wall shall be made in the toilet.
d) The WC. seat shall be 500 mm. from the door.
((1) Provision of W.Cs in buildings without lift:
Provision of special W.C. shall be made on allfloors for buildings designedfor ambulant disabled persons. For buildings designed for non-ambulant disabled special W.C. shall be provided at Ground Floor. Size of WC. shall depend on the type ofwheel chair used by the disabled.
(b) Provisions of W.Cs in buildings with lift Provision of Special W.C. shall be made on all floors. Size will depend on the category ofdisabledfor whom it has been provided.
(c) Toilet Details: For Toilets Designedfor Ambulant Disabled 1) The minimum size of WC. shall; be 1075 x 1650 mm with a minimum depth of I450 mmfrom entry door 900 mm.
Page 80 ii) Long handrail on the side closer to WC. with a clear width between the handrails shall be 900 mm and height ofhandrails shall be 800 mmfromfloor level.
iii) Minimum size ofthe clear door opening shall be 780 mm.
(d) For Toilets Designedfor Non-Ambulant Disabled Small Wheel Chair:
The minimum size of WC. shall be I350 x I500 mm with minimum depth ofI500 mm fiom entry door. 900 mm long handrail on the side closer to W.C. shall be provided.
To provide movement spacefor wheel chair, W. C. seat shall befixed towards one side to the opposite adjacent wall. The centerline of WC. fiom the adjacent wall shall be 400 mm and minimum 950 mm from the other wall. Minimum size of the clear door opening shall be 780 mm.
(e) For Toilets Designedfor Non-Ambulant Disabled Using Large Wheel Chair:
The minimum size of WC. shall be 1500 x I 750 mm with minimum depth ofI 750 mm for entry door. 900 mm long handrail on the side closer to W.C. shall be provided. To provide movement spacefor wheel chair, WC. seat shall befixed towards one side to the opposite adjacent wall. The centerline of W. C. from the adjacent wall shall be 400 mm and a minimum of 1100 mm from the other wall. Minimum size of clear door opening shall be 860 mm.
(8) Designingfor Children In the buildings meantfor the pre-dominant use of the children, it wil be necessary to suitably alter the height ofthe handrail and otherfittings &fixures etc.
Note ,' Guiding/ Warning Floor Material: The floor material to guide or warm the visually impaired persons with a change of colour or material texture and easily distinguishable fiom the rest of the surrounding floor materials. The material with deferent texture gives audible signals with sensory warning when a person moves on this surface with walking stick. The guiding / warningfloor material is meant to give the directional eflect or warm a person at criteria places. It should be provided in the following areas:
a. The access path to the building and to theparking area.
b. The landing lobby towards the information board, reception, lifts staircases and toilets.
c. Immediately at the beginning / end ofwalkway where there is a vehicular traflic.
d. At the location abruptly changing in level or beginning /end ofa ramp.
e. Immediately in front ofan entrance /exit and the landing.
(9) Drinking Water:
Suitable provision of drinking water shall be made for the differently abled near the special toiletprovidedfor them.
(10) Refuge:
An alternative to immediate evaluation ofa building via staircases and/ or lifts is the movement of disabled persons to areas ofsafety within a building. Ifpossible, they could remain there until thefire is controlled and extinguished or until rescued by the firefighters.
a) It is useful to have provisions of a refuge area, usually at thefire protected stair landing on eachfloor that can safely hold one or two wheelchairs.
b) Hand Doorways with clear opening width of900 mm and regular compliance c) Have an alarm switch installed between 900 mm and 1200 mmfromfloor level.
Page 81 (1]) Proper signage a) appropriate identification ofspecific facilities within a buildingfor the differently abledpersons should be done with proper signals.
b) Visually impaired persons make use of other senses such as hearing and touch to compensate for the lack of vision, whereas visual signals benefit those with hearing disabilities. Signs should be designed and located so that they are easily legible by using suitable letter size (not less than 20 mm high) c) For visually impairedpersons, information board in brail should be installed on the wall at a suitable height and it should be possible to approach them closely.
d) T0 ensure safe walking, there should not be any protruding sign which creates obstruction in walking.
e) Public Address system may also be provided in busypublic areas.
fl The symbols /information should be in contrasting colour and properly illuminated because people with limited vision may be able to dijferentiate amongst primary colours.
g) Internal Symbol Markfor wheel chair be installed in a lift, toilet, staircase, parking areas, etc., that have been providedfor the differently abled.
(12) Public Building regulations In case of design regulations in public buildings (excluding domestic buildings), provisionsfor differently-abled shall be adopted as below:
To Provide Facilitates in the Public Building Excluding Domestic Buildingsfor Difl‘erently—abled Persons a. Definitions Ambulant Disabled People: Disabled who are able to walk but who may depend on prostheses (Artificial Limbs) orthoses (Calipers), Sticks, Crutches or Walking aids.
Non-Ambulant Disabled People: Disabledpeople impairments that confine them to wheelchair.
Wheel Chair: Chair used by disabledpeoplefor mobility.
1) Size ofsmall wheel chair: 750 x 1050 mm i1) Size of large wheel chair: 800 x 1 500 mm b. Scope These bye-laws are applicable to public buildings and exclude domestic building.
Building which shall provide access to ambulant disable and Non-Ambulant disabled are listed below. Distinction is madefor buildings to be designedfor the use of large wheel chairs and small wheel chairs.
c. Building to be designedfor Ambulant Disabled People Higher Secondary School, Conference Hall, Dance Halls, Youth Centers, Youth Clubs, Sport centers, Sport Pavilions, Boat Club Houses, Ice Rinks, Bowling Centers, Swimming pools, Police Stations, Law Courts, Courts Houses, Sport Stadium, Theaters, Concert Hall, Cinemas, Auditorias, Small Oflices ( the maximum plinth area 1400 sq. mt) Snack Bars, Cafes and banqueting rooms 0'0r capacity above 50 dinners) Note:
1) In sport stadiums provisions shall be madefor non-ambulant spectators (small wheel chair) ii) @ 1:1000 up to 10,000 spectators and @ 1 :2000for spectators above 10,000.
iii) In Theaters, Concert Halls, Cinemas and Auditoria provisions shall be made for non-ambulant spectators (Small Wheel Chairs) @ 1/250 up to 1000 spectators and 1/ 500 for spectators above 1 000.
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107.
d. Building to be designedfor Non-Ambulant Disabled People:
Schools for physically handicapped, cremation, buildings as mentioned in 3, Botanical Garden, Religious Buildings, Old People Clubs, Village Halls, Day Centers, Junior Training Center, Post Oflices, Banks, Dispensaries, Railway stations, Shops, Super Markets, and Departmental Stores.
Notes: Large Wheel Chair Criteria shall be applicable on groundfloors ofthefollowing building. Post oflices, banks, dispensaries, railway stations, shops, Supermarkets and departmental stores.
e. Building to be designedfor Non-Ambulant People (Using Small Wheel Chairs) Public lavatories in Tourist Sports, Clubs Motels, Professional and Scientific Institution, Museum, Art Galleries, Public Libraries, Laborites, Universities, Collage for further Education, Teachers Training Collages, Technical Collages, Exhibition Halls Dentist Surgeries, Administrative Department of the Hospitals, Service Stations, Car Parking, Buildings Airports Terminals, Bus Terminals, Factories Employing Handicapped for sedentary works, Large Oflices, fl/Vith Plinth area abode 1400 sq. mt), Tax Oflices, Passport Oflices, and Labour Oflices, Cafes, Banqueting Rooms and Snack Bars (For Capacity Above 100 dinners).
f. Buildings Requirements:
All Building requirements for buildingprojects proposed under this category shall be conforming to Annex D, Part 3 ofNBC.
Roof top solar energy installation.
Rooftop photovoltaic power station, or rooftop PV system, is a photovoltaic system that has its electricity igenerating solar panels mounted on the rooftop of any building. The various components of such a system include photovoltaic modules, mounting systems, cables, solar inverters and other electrical accessories. Rooftop PV systems are faster than other types of renewable power plants. They are clean, quiet, and visually unobtrusive. Table below stipulates the Normsfor Roof Top solar PVInstallation- Normsfor Roof Top Solar PVInstallation and generation Sl. Category of Area standards Generation requirement* No. buildings/area I Plotted Housing Plot size of 500 sqmt Minimum 5% of connected load and above or 20W/sqft for ”available roof space “,** whichever is less.
2 Group Housing Allproposals, as per Minimum 5% of connected load Group Housing or 20W/sqft for “available roof Norms space whichever is less.
3 Educational Plot size of 500 sqmt Minimum 5% of connected load 4 Institutional and above or 20 W/ sqft for “available roof 5 Commercial space”, whichever is less.
6 Industrial 7 Mercantile 8 Recreational *Area provisions on roof top shall be @ 12sqmt per 1KWp, as suggested by Ministry of New and renewable Energy.
** ”available rood area” = 70% of the total roof size, considering 30 % area reserved for residents’ amenities.
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108. Installation of Solar Assisted Water Heating System in Govt. functional Building;
109.
Installation of Solar water Heating System:
(a) New Building:
Clearance of plan for the construction of new buildings shall only be given if they have a provision in the building design itself for insulated pipelines from the rooftop in the building to various distribution points where hot water is required. The buildings must have a provision for continuous water supply to the solar water heating system. The building should also have open space on the rooftop, which receives direct sun light. The load bearing capacity of the roof should at least be 50 Kg. per sqm. All new buildings must complete installation of Solar Water Beating Systems before obtaining necessary license to continuance their business.
(b) Existing Buildings:
Installation of Solar Assisted Water Heating Systems in the existing building is mandatory at the time of change of use provided there is a system or installation for supplying hot water. The ULB will strictly observe it while changing the pattern of use.
(c) Capacity:
The capacity of Solar Water Heating System to be installed on the building of different categories shall be decided in consultation with the ULB. The minimum capacity shall not be less than 25 liters per day for each bathroom and kitchen subject to the condition that maximum of 50% of the total roof area is provided with the system.
(d) Specification:
Installation of Solar Assisted Water Heating System shall conform to BIS (Bureau of Indian Standards) specification IS 12933.The Solar collectors used in the system shall have the BIS certification mark.
(e) Auxiliary System:
Wherever hot water requirement is continuous auxiliary heating arrangement either with electric elements or oil of adequate capacity can be provided.
Categories of buildings/gublic u_tilitv mces where So_lar Assisted Water Heating Systems are to be installed:- The following categories of buildings in which there is a system of installation for supplying hot water shall be built unless the system or the installation is also having an auxiliary solar assisted water heating system:
(a) Hospitals & Nursing Homes;
(b) Hotels, Lodges and Guest Houses;
(c) Hostels of Schools, Colleges, Training Centres
(d) Barracks of armed forces, paramilitary forces and polices;
(e) Individual residential building having more than 150 sq. meter. plinth area;
(f) Functional Buildings of Railway stations and Air Ports - like waiting rooms, retiring rooms, rest rooms, inspection bungalows and catering units;
(g) Community centres, Banquet Halls, Barat Ghars, Kalyan mandaps and buildings for similar use.
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